Finding the Fourth Proportional to 125,105.40, 187,660.53 and 40,865.81
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Solution
The fourth proportional to 125,105.40, 187,660.53 and 40,865.81 is: 61,299.50
Step by Step Solution
- Step 1: Write the proportion equation
125,105.40 : 187,660.53 = 40,865.81 : x - Step 2: Convert to fraction form
125,105.40/187,660.53 = 40,865.81/x - Step 3: Cross multiply
125,105.40x = 187,660.53 × 40,865.81 - Step 4: Simplify right side
125,105.40x = 7,668,898,625.18 - Step 5: Solve for x
x = 7,668,898,625.18/125,105.40 - Step 6: Final answer
x = 61,299.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.